Electric switch.



c. a. BEEBE. I ELECTRIC SWITGH.

APPLICATION FILED JAN. 11, 1909.

Patented May 25, 1909.

barren snares PATENT ennin-n.

CHARLES R. BEEBE, OF NEW HAVEN, CONNECTICUT.

nnnotrnro swrron.

no... scares.

Specification of Letters Patent.

Patented May 25, 190%.

Application filed January 11, 1909. Serial No. 4371,7421.

new and useful Improvement in Electric Switches; and I do hereby declare the-following, when taken inconnection with the accompanying drawings and the letters of reference marked thereon, to beja full, clear, and exact description of the same, and which said drawings constitute part of'thisspecification, and represent, in r Figure 1 a. perspective view of a switch box constructed in accordance with my invention. Fig. 2 a plan view of the inside of the box with the cover removed. Fig. 3 a vertical sectional view through the box.

a side view of the key detached.

This invention relates to an improvement in electric switches, and particularly for mo- Fi e tors for boats and vehicles.

In starting motors it is customary to turn the switch to the battery for preliminary sparking, and then when the motor is running it is switched to the magneto. It is also desirable at times to remove the switch key so that the motor cannotbe tampered with.

The obj ect of this invention is a simple ar rangement'of: switch 'mechanism which is.

positive in actioh and from which the key may be readily removed, and when removed positively cuts out the sparking mechanism; and the invention consists inthe construction hereinafterv described and particularly recited in the claims.

The switch box 2 may be of any-desired form, preferably round, and formed from fibrous or other. insulating material.

This cover has a backing 3 also of fiber or other material on which the parts are'mounted. These consist of contact posts 4, 5 and 6 to which wires are suitably connected, the connection 5 leading to the magneto, and theconnection 6 to the battery. Mounted. on the back is a switch arm 7 'provided with an outwardly extending angular lug 8. Se-. cured to the post a is an arm 9. formed atits outer end with a collar 10 which sets over the lug 8 and is held out of contact with the arm 7 by an insulating washer 11. The cover 2 is formed with a bushing 12 which provides a bearing for a key 13 bifurcated at its inner end to set over the lug 8 and contact therewith, and of a diameter to closely fit the collar 10, the key being rovided with a suitable knob or handle 14 ywhich it may be rotated. When the key is inserted it connects the arm Qwith the arm 7 and provides means for turning the arm 7 from the intermediate posltlonto a contact plate 15 connected with the post 5, or a contact plate 16 connected with the post 6 and so that connection. is made either through a battery or through the magneto according to the'direction in which, the keyis turned." The key may tbe removed from either position, and

when removed immediately breaks. contact.

I thu's provide very simple switch mechanism which'is positive in its action and which by removal of the key'breaks the circuit,

I claim 4 1. electric switch'comprising a box, a switch arm mounted therein, contact plates over which the switch arm may be turned, said switch arm formed .with an outwardly projecting lug, an arm, mounted in the box and formed 'at its outer end with a collar urcated key adapted toengage with said lug and of a diameter to contact with ring, substantially as described;

2. An electric switch comprising a cover, a back, three posts mounted in said back, contact plates connected with two of said posts,

,a contact arm mounted in" said case and adapted tobe turned from one contact plate to the other contact plate, the said arm formed with an outwardly projecting lug, an arm secured to the other contact post and formed at its end with a collar adapted to surround said lug, combined with a key adapted to be inserted through'said cover, said key bifurcated at its innerend to engage with saidlug andct a diameter adapted to enter said collar whereby said lug and collar are electrically connected, substantially as described. l V

in testimony whereof, I have signed this specification in the presence of two subscribing witnesses. I

CHARLES R. BEEBE.

Witnesses: c

W. S. BEEBE',

C. BEEBE.

adapted to surround said lug,'combined with a bi said 

